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Rudder tiller question.

Posted: Sun Jul 28, 2019 1:16 pm
by noel
Is it possible to over torque the bolts holding the rudder-tiller assembly together? Last season had to play around with the rudder blade pivot bolt. The rudder would drop down by itself when pulling Vela out of the water. Hindsight, maybe should have shorten the bungee chord. It’s a bit on the stiff side right now. Recently a creak has developed when the rudder blade gets loaded up by water force. Checked the gudgeons. They are fine. Checked all the bolts on the rudder-tiller assembly. They feel firmly fixed. The maybe next step will be to add a bit more tightening to those nuts and bolts.

Vela broke 1000nm logged under sail a couple weeks ago. Some L. Superior days can be hard on boat and body. Not sure if this creak is just a sound to live with. Like a rattle that pops up with the miles in a vehicle. Or something to be concern about.

Re: Rudder tiller question.

Posted: Sun Sep 01, 2019 1:17 pm
by noel
What not to do. Over torque the bolts. Rudder deployment and lifting became stiffer. Creak and clunk when the rudder was loaded up with water pressure got worse. Spent time adjusting the torque on the bolts to more or less have equal force. No more creak and clunk. Also, the rudder drops and lifts smoothly. So basically I messed things up, spent too much time correcting the mess. Have 3 torque wrenches that cover a wide range. Need to use the tools I have instead of being a dolt.

Re: Rudder tiller question.

Posted: Wed Sep 04, 2019 11:44 am
by Jerry
Noel- does you rudder trunk have compression tubes, over the bolts and between the plates? Their purpose obviously is to control the clearance for the rudder and tiller. The bolts should be tightened snugly against them.

Re: Rudder tiller question.

Posted: Thu Sep 05, 2019 1:37 pm
by noel
Yes, but not sure on every bolt. I should know better than to over tighten bolts. Just stresses out the fitting. Decades ago worked in a bicycle shop. People would snap the then “high end” alloy connectors, stem quill bolts.... Then titanium bolts showed up. More expensive broken parts. IMHO not worth the few grams or less in weight savings.